package com.summer.dataStructure;

import java.util.ArrayDeque;
import java.util.LinkedList;

public class DequeTest {
	
	public static void main(String[] args) {
//		ArrayDeque<String> arrayDeque = new ArrayDeque<String>();
//		LinkedList<String> list = new LinkedList<String>();
//		
//		arrayDeque.addLast(e);
//		arrayDeque.size()
		
		System.out.println(""+(-1 & 7));
	}
	
}
